Definition: In this task, you are given an input list A. You need to extract and sort the unique digits used in the list in ascending order. Return -1 if there is no digit in the list.
Input: ['103', 'a', '129', '215', '241', 'y', '41', '357', 'r']

0, 1, 2, 3, 4, 5, 7, 9